1 /*
2  *  Make.org Core API
3  *  Copyright (C) 2020 Make.org
4  *
5  * This program is free software: you can redistribute it and/or modify
6  *  it under the terms of the GNU Affero General Public License as
7  *  published by the Free Software Foundation, either version 3 of the
8  *  License, or (at your option) any later version.
9  *
10  *  This program is distributed in the hope that it will be useful,
11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  *  GNU Affero General Public License for more details.
14  *
15  *  You should have received a copy of the GNU Affero General Public License
16  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
17  *
18  */
19 
20 package org.make.api.technical.graphql
21 
22 import caliban.Value
23 import caliban.schema._
24 import caliban.CalibanError.ExecutionError
25 import org.make.core.technical.Pagination
26 import io.circe.Json
27 
28 object GraphQLArgBuilders {
29 
30   implicit val limitArgBuilder: ArgBuilder[Pagination.Limit] = {
31     case Value.StringValue(value) =>
32       Pagination.limitDecoder
33         .decodeJson(Json.fromString(value))
34         .fold(ex => Left(ExecutionError(s"Can't parse $value into a Limit")), Right(_))
35     case other => Left(ExecutionError(s"Can't build a Limit from input $other"))
36   }
37 
38   implicit val offsetArgBuilder: ArgBuilder[Pagination.Offset] = {
39     case Value.StringValue(value) =>
40       Pagination.offsetDecoder
41         .decodeJson(Json.fromString(value))
42         .fold(ex => Left(ExecutionError(s"Can't parse $value into an Offset")), Right(_))
43     case other => Left(ExecutionError(s"Can't build an Offset from input $other"))
44   }
45 }